Synthesis of a novel photoresponsive axially chiral phosphine ligand containing an arylazo group and its application to palladium-catalyzed asymmetric allylic alkylation |
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| Authors: | Kawamura Masato Kiyotake Ryosuke Kudo Kazuaki |
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| Institution: | Institute of Industrial Science, The University of Tokyo, Tokyo, Japan. |
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| Abstract: | Novel photoresponsive axially chiral monophosphine ligands containing azobenzene moiety were prepared and applied to a palladium-catalyzed allylic alkylation. The reaction of rac-1,3-diphenyl-2-propenyl acetate gave the alkylated products with up to 90% enantiomeric excess. The ligand exhibited a trans to cis photoisomerization upon irradiation with UV light. |
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| Keywords: | azo compounds binaphthyl palladium phosphines photoisomerization |
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